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US INSIDER PROFILE · NON-SCORING RESEARCH
Deng Chiyuan
Chief Executive Officer | Officer | President
Identity: SEC reporting-owner CIK · Reporting-owner CIK: 0001749742
Purchase history
- Companies traded
- 1
- Purchases · 12M
- 2
- Purchases · 24M
- 2
- Average purchase
- $111.5K
- Median purchase
- $111.5K
- Gross purchase value
- $222.9K
Companies: AI Era Corp.
2 SEC accession(s) · 0 joint-owner event(s). Values are reported Form 4 transaction values in USD.
Qualifying purchase disclosures
| Published | Company | Ticker | Role | Reported value | SEC source |
|---|---|---|---|---|---|
| 2026-05-05 | AI Era Corp. | AERA | President | $111.1K | Open filing |
| 2026-02-25 | AI Era Corp. | AERA | Chief Executive Officer | Officer | $111.8K | Open filing |
Post-purchase outcomes
Excess return = stock return − S&P 500 ETF (SPY adjusted close) return. Returns start on the first shared trading session on or after publication.
| Period | Completed events | Price coverage | Hit rate | Median excess return | Average excess return | Worst excess return |
|---|---|---|---|---|---|---|
| 5D | 2Small Sample | 100.0% (2/2) | 50.0% (1/2) | +9.3% | +9.3% | -0.0% |
| 20D | 2Small Sample | 100.0% (2/2) | 50.0% (1/2) | +3.4% | +3.4% | -4.2% |
| 60D | 2Small Sample | 100.0% (2/2) | 50.0% (1/2) | +48.8% | +48.8% | -57.5% |
| 120D | 1Small Sample | 100.0% (1/1) | 0.0% (0/1) | -23.7% | -23.7% | -23.7% |
Research patterns
- First purchase in 12M
- 1/2
- Large purchase ≥ $100k
- 2/2
- Cluster buying · 15D
- 0/2
- Buying the dip
- 2/2
Routine / opportunistic: Not classifiable. These labels never affect the score or ranking.
Small samples remain visible but are not scored. This research enrichment never affects US-v1.1.